From 22a13850cb0640d4fdfd8da66bc46ce20e2eb309 Mon Sep 17 00:00:00 2001
From: alberth <alberth@openttd.org>
Date: Thu, 30 Dec 2010 13:16:31 +0000
Subject: [PATCH] (svn r21665) -Codechange: Make GetCallbackWnd a method of
 _thd.

---
 src/industry_gui.cpp     |  2 +-
 src/tilehighlight_type.h |  1 +
 src/viewport.cpp         | 13 ++++++++++++-
 src/window.cpp           | 11 +++--------
 src/window_gui.h         |  2 --
 5 files changed, 17 insertions(+), 12 deletions(-)

diff --git a/src/industry_gui.cpp b/src/industry_gui.cpp
index 37c9841d03..c53e40ba55 100644
--- a/src/industry_gui.cpp
+++ b/src/industry_gui.cpp
@@ -482,7 +482,7 @@ public:
 
 					this->SetDirty();
 
-					if (GetCallbackWnd() == this &&
+					if (_thd.GetCallbackWnd() == this &&
 							((_game_mode != GM_EDITOR && _settings_game.construction.raw_industry_construction == 2 && indsp != NULL && indsp->IsRawIndustry()) ||
 							this->selected_type == INVALID_INDUSTRYTYPE ||
 							!this->enabled[this->selected_index])) {
diff --git a/src/tilehighlight_type.h b/src/tilehighlight_type.h
index 291b950d4a..0e9ce8bc6f 100644
--- a/src/tilehighlight_type.h
+++ b/src/tilehighlight_type.h
@@ -75,6 +75,7 @@ struct TileHighlightData {
 	ViewportDragDropSelectionProcess select_proc; ///< The procedure that has to be called when the selection is done.
 
 	bool IsDraggingDiagonal();
+	Window *GetCallbackWnd();
 };
 
 #endif /* TILEHIGHLIGHT_TYPE_H */
diff --git a/src/viewport.cpp b/src/viewport.cpp
index 2ff4cf635d..1b8e5965b6 100644
--- a/src/viewport.cpp
+++ b/src/viewport.cpp
@@ -1871,7 +1871,7 @@ static void PlaceObject()
 	_tile_fract_coords.x = pt.x & TILE_UNIT_MASK;
 	_tile_fract_coords.y = pt.y & TILE_UNIT_MASK;
 
-	w = GetCallbackWnd();
+	w = _thd.GetCallbackWnd();
 	if (w != NULL) w->OnPlaceObject(pt, TileVirtXY(pt.x, pt.y));
 }
 
@@ -2016,6 +2016,17 @@ bool TileHighlightData::IsDraggingDiagonal()
 	return (this->place_mode & HT_DIAGONAL) != 0 && _ctrl_pressed && _left_button_down;
 }
 
+/**
+ * Get the window that started the current highlighting.
+ * @return The window that requested the current tile highlighting, or \c NULL if not available.
+ */
+Window *TileHighlightData::GetCallbackWnd()
+{
+	return FindWindowById(this->window_class, this->window_number);
+}
+
+
+
 /**
  * Updates tile highlighting for all cases.
  * Uses _thd.selstart and _thd.selend and _thd.place_mode (set elsewhere) to determine _thd.pos and _thd.size
diff --git a/src/window.cpp b/src/window.cpp
index ae9a683ac2..3e601d2123 100644
--- a/src/window.cpp
+++ b/src/window.cpp
@@ -1400,16 +1400,11 @@ static void DecreaseWindowCounters()
 	}
 }
 
-Window *GetCallbackWnd()
-{
-	return FindWindowById(_thd.window_class, _thd.window_number);
-}
-
 static void HandlePlacePresize()
 {
 	if (_special_mouse_mode != WSM_PRESIZE) return;
 
-	Window *w = GetCallbackWnd();
+	Window *w = _thd.GetCallbackWnd();
 	if (w == NULL) return;
 
 	Point pt = GetTileBelowCursor();
@@ -1430,7 +1425,7 @@ static EventState HandleDragDrop()
 	if (_special_mouse_mode != WSM_DRAGDROP) return ES_NOT_HANDLED;
 	if (_left_button_down) return ES_HANDLED;
 
-	Window *w = GetCallbackWnd();
+	Window *w = _thd.GetCallbackWnd();
 
 	if (w != NULL) {
 		/* send an event in client coordinates. */
@@ -1454,7 +1449,7 @@ static EventState HandleMouseDrag()
 	if (_special_mouse_mode != WSM_DRAGDROP) return ES_NOT_HANDLED;
 	if (!_left_button_down || (_cursor.delta.x == 0 && _cursor.delta.y == 0)) return ES_NOT_HANDLED;
 
-	Window *w = GetCallbackWnd();
+	Window *w = _thd.GetCallbackWnd();
 
 	if (w != NULL) {
 		/* Send an event in client coordinates. */
diff --git a/src/window_gui.h b/src/window_gui.h
index 90e3135bef..34347bfe61 100644
--- a/src/window_gui.h
+++ b/src/window_gui.h
@@ -821,8 +821,6 @@ enum SpecialMouseMode {
 };
 extern SpecialMouseMode _special_mouse_mode;
 
-Window *GetCallbackWnd();
-
 void SetFocusedWindow(Window *w);
 
 void ScrollbarClickHandler(Window *w, NWidgetCore *nw, int x, int y);